<h3>p tags with an image get a border, others don't, thanks to :has()</h3>
<div class="has-container">
  <div>
    <p>I haz red text?<BR>
      <img src="http://placekitten.com/200/200" class=".content-image">
    </p>
  </div>
  <div>
    <p>No image, blue text 😕<BR></p>
  </div>
</div>

h3 {
  font-family: arial, sans-serif;
}
.has-container {
  font-family: arial, sans-serif;
  display: flex;
  gap: 20px;
}
p {
  color: blue;
}
p:has(img){
  color: red;
}